CN112211424B - Reinforcing system for reinforcing existing masonry by outer sleeved portal type rigid frame and construction method - Google Patents
Reinforcing system for reinforcing existing masonry by outer sleeved portal type rigid frame and construction method Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
Abstract
The invention discloses a reinforcing system for reinforcing an existing masonry building by using an outer sleeved portal rigid frame and a construction method, and belongs to the technical field of reinforcing of existing masonry buildings. The reinforced concrete door type rigid frame column is arranged on the outer side of an original outer longitudinal wall along the direction of an original transverse wall, the reinforced concrete door type rigid frame column extends to a roof from bottom to top, and the reinforced concrete door type rigid frame column is connected with an original balcony cantilever beam through a longitudinal anchor bar. The portal rigid frame beam is arranged at the top of the reinforced concrete portal rigid frame column along the original direction of the transverse wall. The inhaul cable component penetrates through an original transverse wall at the lower part of an original floor slab, and two ends of the inhaul cable component penetrate through the reinforced concrete door-type rigid frame column and are anchored. The invention improves the lateral stiffness and the earthquake-resistant bearing capacity of the structure without increasing the building area and basically without increasing the self weight, and transmits part of the earthquake action and the vertical load born by the main structure to the reinforced concrete portal rigid frame structure.
Description
Technical Field
The invention relates to the technical field of existing masonry building reinforcement, in particular to a reinforcement system and a construction method for reinforcing an existing masonry building by using an outer portal type rigid frame.
Background
The masonry structure is low in cost and wide in application in China, and has the problems of low material strength, poor structural integrity, incapability of meeting the requirement of earthquake resistance identification and the like due to long-term construction and low design requirement due to long-term construction, so that reinforcement is urgently needed.
The traditional seismic strengthening method of the masonry structure comprises a sprayed concrete strengthening method, a plate wall strengthening method, a reinforcing mesh mortar surface layer strengthening method, an additional seismic cross wall strengthening method and an additional cast-in-place concrete ring beam-constructional column method. The plate wall reinforcing method is to remove a plaster layer on the surface of a masonry wall needing to be reinforced, drill holes for planting ribs or arranging tie bars, hang reinforcing mesh sheets on one side or two sides of the wall, and finally spray concrete to the wall in a layering manner, so that the anti-seismic bearing capacity, ductility and rigidity of the wall can be improved. The reinforcing method of the reinforcing mesh mortar surface layer is to remove a plaster layer on the surface of a masonry wall needing to be reinforced, drill holes for embedding ribs or arranging tie bars, hang reinforcing mesh sheets on one side or two sides of the wall, and paint cement mortar on the wall in a layered mode, so that the anti-seismic bearing capacity, ductility and rigidity of the wall can be improved. The additional anti-seismic transverse wall reinforcing method is characterized in that when the distance between transverse walls is large, reinforced concrete walls or masonry walls are additionally arranged between the transverse walls and are connected with the main body structure, so that the integrity, the stability and the anti-seismic bearing capacity of the house are improved. The method is characterized in that an additional reinforced concrete constructional column is arranged at the joint of four corners of an outer wall and the inner wall and the outer wall, a closed ring beam is arranged at the elevation of each floor along the outer wall, and steel pull rods are arranged at the internal transverse wall and the internal corner of the floor, so that the seismic strengthening method of the masonry structure building with the integrity needs to be locally accessed. The methods need more wet operations, need to be consolidated for home entry, have great influence on the use function, need to be turned over and moved and restored by later decoration, have large investment and are difficult to coordinate. In addition, the traditional shock insulation method needs to pile in the building and around the building, perform foundation underpinning and shock insulation transformation, perform flexible connection transformation on building water and electricity and gas pipelines and perform hanging transformation on elevators and stairs, and has the disadvantages of large pile foundation construction and earthwork excavation engineering quantity, high comprehensive transformation cost and large disturbance.
The more novel reinforcement methods adopted in recent years include a Fiber Reinforced Plastic (FRP) reinforcement method, a bonded steel reinforcement method, a steel strand-polymer mortar reinforcement method, and the like. The fiber reinforced composite material (FRP) reinforcing method is that the fiber reinforced composite material is a high-performance material formed by mixing fiber material and base material according to a certain proportion, and has light weight, high strength and good corrosion resistance. The method comprises the steps of firstly polishing and flattening the part to be reinforced, removing a surface ash layer, smearing a layer of primer on the surface of a wall body, and sticking the carbon fiber cloth on the surface of the primer by using an adhesive after the primer is solidified. The method has good fatigue resistance, and can remarkably improve the ductility and the shear-resistant bearing capacity of the structure while hardly increasing the weight of the structure. Although the method can shorten the construction period, the outer wall surface still needs to be polished, so that the environmental pollution is caused, the construction cost is high, and further practice and research are still needed. The steel strand-polymer mortar reinforcing method is characterized in that the steel strand with high tensile strength is bonded on an original structure to form a whole while the steel strand net piece is protected by utilizing the good permeability, bonding strength and compactness of the polymer mortar, so that the steel strand net piece is in deformation coordination with the original section on any section. When the structure is stressed, the rigidity and the bearing capacity of the structure are improved through the joint work of the original structure and the reinforcing layer, so that the purpose of reinforcing is achieved. However, the method has high requirements on structural adhesives, the reinforcing effect depends on the bonding effect, and the manufacturing cost is high.
Therefore, a masonry building reinforcement technology needs to be developed to promote the existing building earthquake-resistant reinforcement and old community comprehensive transformation engineering.
Disclosure of Invention
The invention aims to provide a reinforcing system for reinforcing an existing masonry building by using an outer sleeved portal rigid frame and a construction method, and aims to solve the problem of limitation existing in the traditional reinforcing method, wherein the reinforcing system comprises a plurality of wet operations, home-entering reinforcement, shock insulation reinforcement, pile driving in the building and at the periphery, soft connection reconstruction of building water and electricity and gas pipelines, and suspension reconstruction of an elevator and a stair are needed, the pile foundation construction and earthwork excavation engineering quantity is large, the comprehensive reconstruction cost is high, and the disturbance is large; the reinforcing method of the fiber reinforced composite material has the problems that the outer wall surface needs to be polished, the environment is polluted, and the construction cost is high; the steel strand-polymer mortar reinforcing method has high requirements on structural adhesives, the reinforcing effect depends on the bonding effect, and the manufacturing cost is high.
In order to solve the technical problem, the invention provides a reinforcing system for reinforcing an existing masonry building by using an outer sleeved portal rigid frame, which comprises:
the reinforced concrete portal rigid frame column is arranged on the outer side of the original outer longitudinal wall along the direction of the original transverse wall, extends to a roof from bottom to top, and is connected with the original balcony cantilever beam through a longitudinal anchor bar;
the portal rigid frame beam is arranged at the top of the reinforced concrete portal rigid frame column along the original transverse wall direction;
and the inhaul cable component penetrates through the original transverse wall at the lower part of the original floor slab, and the two ends of the inhaul cable component penetrate through the reinforced concrete door-type rigid frame column and are anchored.
Preferably, the reinforced concrete slab wall further comprises reinforced concrete slab walls arranged on the outer sides of the original gable walls and the outer sides of the original outer longitudinal walls, and two ends of a slab wall horizontal rib in the reinforced concrete slab wall are anchored in the reinforced concrete door-type rigid frame column.
Preferably, be connected with vertical straining beam between each floor elevation place, the tip outside of adjacent reinforced concrete door-type rigid frame post, the lower surface parallel and level of vertical straining beam and the original balcony cantilever beam of former masonry structure's lower surface, be connected through horizontal anchor bar between vertical straining beam and the original balcony cantilever plate.
Preferably, the longitudinal tie beam and the reinforced concrete door-type rigid frame column are integrally cast.
Preferably, the public stairwell of the original masonry structure is provided with a steel mesh mortar surface layer.
Preferably, the cable member is a prestressed steel pull rod or a prestressed steel strand.
Preferably, the cable member is one of a straight line, a broken line or a curved line.
Preferably, a cementing material is poured between the stay cable component and the original transverse wall.
In addition, the invention also provides a construction method of the reinforcing system for reinforcing the existing masonry by the outer sleeved portal rigid frame, which comprises the following steps:
firstly, earth excavation is carried out, and a foundation of a reinforced concrete slab wall and a foundation of a reinforced concrete portal rigid frame column are manufactured;
drilling holes in the original transverse wall at the lower part of the original floor slab and at the position through which the stay cable member is supposed to pass;
thirdly, arranging a stay cable component in the hole, and pouring a cementing material into the hole;
binding the steel bars of the reinforced concrete portal rigid frame column, the steel bars of the longitudinal tie beam and the plate wall horizontal bars of the reinforced concrete plate wall to form a steel bar cage, penetrating the two ends of the stay cable member through the reinforced concrete portal rigid frame column to be poured, and then pouring the concrete of the reinforced concrete portal rigid frame column and the concrete of the sprayed reinforced concrete plate wall;
step five, roof construction, wherein a portal rigid frame beam is arranged at the top of the reinforced concrete portal rigid frame column to form a complete portal rigid frame;
applying prestress to the stay cable component to form a portal rigid frame-prestress pull rod reinforcing system;
and step seven, the longitudinal tie beam is connected with the original balcony cantilever plate through a transverse anchor bar so as to increase the anti-overturning capacity of the original cantilever balcony.
Preferably, in the fourth step, a sleeve is arranged in the reinforced concrete portal rigid frame column to be constructed so as to anchor the stay cable member.
Compared with the prior art, the invention has the characteristics and beneficial effects that:
(1) the reinforced concrete portal rigid frame structure is formed by arranging the reinforced concrete portal rigid frame columns and the portal rigid frame beams on the periphery of the original masonry structure, holes are drilled in the original transverse walls below each floor along the axis direction of the wall body, the holes are internally provided with the stay cable members, two ends of each stay cable member penetrate through the reinforced concrete portal rigid frame columns and are anchored, and the reinforced concrete portal rigid frame structure is reliably connected with the original masonry structure. The invention improves the lateral rigidity resistance, the earthquake resistance bearing capacity and the vertical bearing capacity of the structure without increasing the building area and basically without increasing the dead weight, and transmits part of the earthquake action and the vertical load born by the main structure to the reinforced concrete portal rigid frame structure.
(2) The reinforced concrete door-type rigid frame structure is characterized in that a reinforced slab wall is arranged on the outer side of the original gable wall and the outer side of the original outer longitudinal wall respectively, a reinforced mesh mortar surface layer is arranged at public positions such as a staircase and the like, and the reinforced slab wall and the reinforced concrete door-type rigid frame structure form a complete set of reinforcing system, so that the comprehensive earthquake resistance of the existing building is further improved.
(3) According to the invention, the longitudinal tie beams are connected between the elevations of each layer and the outer sides of the end parts of the adjacent reinforced concrete door-type rigid frame columns, so that the out-of-plane stability of the reinforced concrete door-type rigid frame structure is improved.
(4) The guy cable component can adopt one or more combination forms of straight lines, broken lines or multiple sections of parabolas according to requirements, after prestress is applied to the guy cable component, the guy cable component generates upward arch-returning force in the original transverse wall body based on a wall-beam mechanism, so that the integral connection of the reinforced concrete door-type rigid frame structure and the original masonry structure is ensured, the original masonry structure wall body is unloaded layer by layer, and the problems that the vertical bearing capacity of the original wall body is insufficient and the wall body needs to be reinforced at home are partially solved.
(5) The invention does not need to polish the original wall surface, reduces the environmental pollution and lowers the construction cost.
(6) The reinforcing system is connected with the original masonry structure through cast-in-place reinforced concrete instead of structural adhesive bonding, so that the reinforcing effect is better, and the fireproof and anticorrosive performance and the durability are better.
Drawings
Figure 1 is a schematic floor plan.
Fig. 2 is a plan view of a double-pitched roof.
Fig. 3 is a plan view of a four-pitched roof.
Fig. 4 is a schematic sectional view of fig. 1-1.
Fig. 5 is a schematic sectional view of 2-2 in fig. 1.
Fig. 6 is a schematic sectional view of 3-3 of fig. 1.
Fig. 7 is a schematic cross-sectional view of 4-4 of fig. 1.
Fig. 8 is a schematic view of the connection between the original overhanging balcony and the reinforced concrete door-type rigid frame column.
Fig. 9 is a schematic cross-sectional view taken at 5-5 in fig. 8.
The attached drawings are marked as follows: 1-reinforced concrete door type rigid frame column, 2-door type rigid frame beam, 3-stay cable component, 4-original transverse wall, 5-original outer longitudinal wall, 6-original floor, 7-original balcony cantilever beam, 8-longitudinal tension beam, 9-original balcony cantilever plate, 10-reinforced concrete slab wall, 11-original gable, 12-public stairwell, 13-slab wall horizontal rib, 14-longitudinal anchor bar and 15-transverse anchor bar.
Detailed Description
In order to make the technical means, innovative features, objectives and functions realized by the present invention easy to understand, the present invention is further described below.
The examples described herein are specific embodiments of the present invention, are intended to be illustrative and exemplary in nature, and are not to be construed as limiting the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 to 9, a reinforcing system for reinforcing an existing masonry building by using an externally-sleeved portal rigid frame comprises a reinforced concrete portal rigid frame column 1, a portal rigid frame beam 2 and a guy cable member 3. The reinforced concrete portal rigid frame column 1 is a special-shaped column or a short-limb wall. The portal frame beam 2 may be a reinforced concrete portal frame beam or a portal steel beam. When the portal rigid frame beam 2 is a portal steel beam, arrangement such as leveling, slope changing and the like is facilitated. Reinforced concrete portal rigid frame post 1 sets up in the outside of original outer longitudinal wall 5 along original transverse wall 4 direction, and reinforced concrete portal rigid frame post 1 extends to the roof from bottom to top, is connected through vertical anchor bar 14 between reinforced concrete portal rigid frame post 1 and the original balcony cantilever beam 7. The portal rigid frame beam 2 is arranged at the top of the reinforced concrete portal rigid frame column 1 along the direction of the original transverse wall 4. Holes are drilled in the original transverse wall 4 at the lower part of the original floor slab 6 of the original masonry structure along the axis direction of the wall body, the stay cable members 3 penetrate through the holes, and the two ends of each stay cable member penetrate through the reinforced concrete portal rigid frame columns 1 and are anchored. In order to enhance the connection between the stay cable component 3 and the original transverse wall 4 and further ensure that the reinforced concrete door-type rigid frame structure is reliably connected with the original masonry structure, cementing materials are poured between the stay cable component 3 and the original transverse wall 4.
In order to further improve the comprehensive shock resistance of the original masonry structure, the reinforced concrete plate wall structure further comprises reinforced concrete plate walls 10 arranged on the outer sides of the original gable 11 and the original outer longitudinal wall 5, and two ends of a plate wall horizontal rib 13 in each reinforced concrete plate wall 10 are anchored in the reinforced concrete portal rigid frame columns 1. The reinforced concrete panel wall 10 and the reinforced concrete door type rigid frame column 1 are connected to form a closed structure, so that the integrity of reinforcing the reinforced concrete panel wall 10 is improved.
In order to improve the stability of the reinforced concrete portal rigid frame structure outside the transverse plane, longitudinal tie beams 8 are connected between the positions of each layer of elevations and the outer sides of the end parts of adjacent reinforced concrete portal rigid frame columns 1, and specifically, the longitudinal tie beams 8 and the reinforced concrete portal rigid frame columns 1 are integrally cast. The lower surface of the longitudinal tie beam 8 is flush with the lower surface of the original balcony cantilever beam 7 of the original masonry structure, and the longitudinal tie beam 8 is connected with the original balcony cantilever plate 9 through a transverse anchor bar 15.
In order to further improve the comprehensive earthquake resistance of the existing building, the invention arranges a steel bar mesh mortar surface course on the public stairwell 12 of the original masonry structure.
The inhaul cable member 3 is a prestressed steel pull rod or a prestressed steel strand. The stay cable component 3 is in one or more combination forms of straight line, broken line or multistage parabola, and after the stay cable component 3 is constructed and prestressed, the stay cable component 3 generates upward inverted arch force in the original transverse wall 4, so that the integral connection of the reinforced concrete door-type rigid frame structure and the original masonry structure is ensured, the original masonry structure wall is unloaded layer by layer, and the difficult problems that the vertical bearing capacity of the original transverse wall 4 is insufficient and the indoor reinforcement is needed are partially solved.
The construction method for reinforcing the reinforcing system of the existing masonry building by the outer sleeved portal rigid frame is characterized by comprising the following steps of:
firstly, earth excavation is carried out, and a foundation of the reinforced concrete panel wall 10 and a foundation of the reinforced concrete portal rigid frame column 1 are manufactured.
And step two, drilling holes in the original transverse wall 4 at the lower part of the original floor slab 6 and the part through which the inhaul cable member 3 is supposed to pass.
And step three, arranging the inhaul cable member 3 in the hole, and pouring a cementing material into the hole.
And step four, binding the steel bars of the reinforced concrete portal rigid frame column 1, the steel bars of the longitudinal tie beam 8 and the plate wall horizontal bars 13 of the reinforced concrete plate wall 10 to form a steel reinforcement cage, penetrating the two ends of the stay cable component 3 through the reinforced concrete portal rigid frame column 1 to be poured, and particularly arranging a sleeve in the reinforced concrete portal rigid frame column 1 to be constructed to anchor the stay cable component 3. Then pouring the concrete of the reinforced concrete portal rigid frame column 1 and spraying the concrete of the reinforced concrete panel wall 10.
And fifthly, roof construction, wherein the portal rigid frame beam 2 is arranged at the top of the reinforced concrete portal rigid frame column 1 to form a complete portal rigid frame. Purlins and waterproof layers can be additionally arranged on the portal rigid frame beam 2 to realize the flat slope change of the roof.
And step six, applying prestress to the stay cable component 3 to form a portal rigid frame-prestress pull rod reinforcing system.
And step seven, the longitudinal tie beam 8 is connected with the original balcony cantilever plate 9 through the transverse anchor bar 15 so as to increase the anti-overturning capacity of the original cantilever balcony.
The above examples are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (10)
1. The utility model provides an outer portal rigid frame consolidates existing brickwork building's reinforcement system which characterized in that includes:
the reinforced concrete portal rigid frame column (1) is arranged on the outer side of an original outer longitudinal wall (5) along the direction of an original transverse wall (4), the reinforced concrete portal rigid frame column (1) extends to a roof from bottom to top, and the reinforced concrete portal rigid frame column (1) is connected with an original balcony cantilever beam (7) through a longitudinal anchor (14);
the portal rigid frame beam (2) is arranged at the top of the reinforced concrete portal rigid frame column (1) along the direction of the original transverse wall (4);
and the inhaul cable component (3) penetrates through the original transverse wall (4) at the lower part of the original floor slab (6), and the two ends of the inhaul cable component penetrate through the reinforced concrete door-type rigid frame column (1) and are anchored.
2. The reinforcing system for reinforcing the existing masonry by the outer sleeved portal rigid frame according to claim 1, wherein the reinforcing system comprises: the reinforced concrete door-type rigid frame column is characterized by further comprising reinforced concrete plate walls (10) arranged on the outer sides of the original gable walls (11) and the outer sides of the original outer longitudinal walls (5), wherein two ends of plate wall horizontal ribs (13) in the reinforced concrete plate walls (10) are anchored in the reinforced concrete door-type rigid frame column (1).
3. The reinforcing system for reinforcing the existing masonry by the outer sleeved portal rigid frame according to claim 1, wherein the reinforcing system comprises: be connected with vertical straining beam (8) between the tip outside of each floor elevation place, adjacent reinforced concrete door-type rigid frame post (1), the lower surface of vertical straining beam (8) and the lower surface parallel and level of original balcony cantilever beam (7) of former masonry structure, be connected through horizontal dowel (15) between vertical straining beam (8) and the original balcony cantilever plate (9).
4. The reinforcing system for reinforcing the existing masonry by the outer sleeved portal rigid frame according to claim 3, wherein the reinforcing system comprises: and the longitudinal tie beam (8) and the reinforced concrete portal rigid frame column (1) are integrally cast and formed.
5. The reinforcing system for reinforcing the existing masonry by the outer sleeved portal rigid frame according to claim 1, wherein the reinforcing system comprises: a public staircase (12) of the original masonry structure is provided with a steel mesh mortar surface layer.
6. The reinforcing system for reinforcing the existing masonry by the outer sleeved portal rigid frame according to claim 1, wherein the reinforcing system comprises: the inhaul cable member (3) is a prestressed steel pull rod or a prestressed steel strand.
7. The reinforcing system for reinforcing the existing masonry by the outer sleeved portal rigid frame according to claim 6, wherein the reinforcing system comprises: the inhaul cable component (3) is one of a straight line, a broken line or a curve.
8. The reinforcing system for reinforcing the existing masonry by the outer sleeved portal rigid frame according to claim 1, wherein the reinforcing system comprises: cementing materials are poured between the inhaul cable component (3) and the original transverse wall (4).
9. A construction method of a reinforcement system for reinforcing an existing masonry by an externally-covered portal rigid frame according to any one of claims 1 to 8, comprising the steps of:
firstly, earth excavation is carried out, and a foundation of a reinforced concrete slab wall (10) and a foundation of a reinforced concrete portal rigid frame column (1) are manufactured;
step two, drilling holes in the original transverse wall (4) at the lower part of the original floor slab (6) and at the part through which the inhaul cable member (3) is supposed to pass;
thirdly, arranging a stay cable component (3) in the hole, and pouring a cementing material into the hole;
binding the steel bars of the reinforced concrete portal rigid frame column (1), the steel bars of the longitudinal tie beam (8) and the plate wall horizontal bars (13) of the reinforced concrete plate wall (10) to form a steel bar cage, penetrating the two ends of the stay cable component (3) through the reinforced concrete portal rigid frame column (1) to be poured, then pouring the concrete of the reinforced concrete portal rigid frame column (1) and spraying the concrete of the reinforced concrete plate wall (10);
step five, roof construction, wherein a portal rigid frame beam (2) is arranged at the top of the reinforced concrete portal rigid frame column (1) to form a complete portal rigid frame;
step six, applying prestress to the stay cable component (3) to form a portal rigid frame-prestress pull rod reinforcing system;
and step seven, the longitudinal tie beam (8) is connected with the original balcony cantilever plate (9) through a transverse anchor bar (15) so as to increase the anti-overturning capacity of the original cantilever balcony.
10. The construction method of the reinforcement system for reinforcing the existing masonry by the outer sleeved portal rigid frame according to claim 9, wherein the construction method comprises the following steps: and in the fourth step, a sleeve is arranged in the reinforced concrete portal rigid frame column (1) to be constructed to anchor the inhaul cable member (3).
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| CN206144185U (en) * | 2016-09-27 | 2017-05-03 | 陕西建研结构工程股份有限公司 | Existing brickwork and steel framework composition building structure |
| CN110331868A (en) * | 2019-07-16 | 2019-10-15 | 南通市规划设计院有限公司 | One kind going support cylinder External prestressed ruggedized construction and construction method |
| KR20200010005A (en) * | 2018-07-19 | 2020-01-30 | 동인구조기술주식회사 | Seismic reinforcing super frame |
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| CN103917725A (en) * | 2012-03-26 | 2014-07-09 | Sr系统有限责任公司 | Anti-torsion construction system providing structural integrity and seismic resistance |
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| CN104213717A (en) * | 2014-07-10 | 2014-12-17 | 上海市建筑科学研究院(集团)有限公司 | Integrated reconstruction method for multi-storey residential |
| CN206144185U (en) * | 2016-09-27 | 2017-05-03 | 陕西建研结构工程股份有限公司 | Existing brickwork and steel framework composition building structure |
| KR20200010005A (en) * | 2018-07-19 | 2020-01-30 | 동인구조기술주식회사 | Seismic reinforcing super frame |
| CN110331868A (en) * | 2019-07-16 | 2019-10-15 | 南通市规划设计院有限公司 | One kind going support cylinder External prestressed ruggedized construction and construction method |
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